Petebs c



(No Modem 2 Sheets-Sheet 1.

' w. s. F. DILLON.

GAR AXLE BOX LID.

No. 439,346. Patented Oct. 28, 1890.

(No Model.) QSheets-Sheet 2.

W'. S. P. DILLON.

GAR, AXLE BOX LID.

170 439346. Patented Oct. 28. 1890.

avw'emtoz wwwaooe-o v I l UNITED. STATES. PATENT OFFICE.

\VILLIAM S. F. DILLON, OF

CAR-AXLE-BOX LID.

SPECIFICATION forming part of Letters Patent No. {139,346, dated October 28, 1890.

Application filed July 24, 1890. Serial No. 359,777. (No model.)

To all whom it may concern.-

Be it known that I, WILLIAM S. F. DILLON, a citizen of Jamaica, West Indies, residing at Lima, in the county of Allen and State of Ohio, have invented certain new and useful Improvements in Axle-Boxes for Railway-Oar Trucks; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

My invention relates to improvements in axle-boxes for railway-car trucks; and it consists in providing a means whereby the lid when raised to allow an examination and renewal of oil and packing will remain so until forcibly closed, and when closed be kept firmly in place and secure against being jarred open by the motion of the trucks.

The invention has for its object theconstruction of the lid or cover and the means whereby it may be readily attached to and detached from the box, and a novel mechanism consisting of a plunger seated on a spiral spring within a chamber formed on the lid, and having on its outer end. a concave face and a convex projection, which bear against and register with a suitable recess of the offset of the box to which the lid is attached.

The invention has, further, for its object the novel construction and arrangements of parts, as will hereinafterbe described, pointed out in the claims hereto appended, and illustrated in the accompanying drawings.

In the accompanying drawings, in which similar letters of reference designate corresponding parts, Figure 1 is a front view of the axle-box. Fig. 2 is a side elevation of the same. Fig. 3 is a central sectional view through the axle-box and its lid. Fig. 4 is a similar view showing the lid raised. Fig. 5 is a detail view of the oifset of the box to which the lid is hinged. Fig. 6 is a detail perspective view of the plunger. Fig. 7 is a detail view of the inner side of one of the lugs for attaching the lid. Fig. 8 is a detail view showing the plunger in position to hold the lid closed. Fig. 9 is a front view, partly in section, showing a modification. Fig. 10 is a central sectional view of the same. Fig. 11 is a detail perspective view showing the offset in perspective.

Referring to the drawings by letter, A represents the box of ordinary construction.

B is a lug or offset attached to or made integral with the box. This lug or offset has projecting from both sides the journals or bosses C. These may be cast integral with the oifset, or they may be formed by casting the ofiset without them and then boring out a suitable receptacle for a pin, the projecting ends of which will form the journals. In the lower outer side of the offset, which is partly cylindrical in shape, near where it joins the side of the axle-box, is formed a recess D, extending the whole width of the base. The object of this will be explained farther on.

E is the lid covering the opening in the axle-box. From its upper edge project the lugs F F. The inner sides of these are recessed so as to form hooks G. These lugs register with the ofiset of the axle-box and are hinged to the same by. the hooks G, en gaging with the journals 0. OpeningsT are formed in the sides of the lugs F, so that the offset may be scribed for boring so that apin may be inserted to more securely hold the lid in place.

A chamber H is formed on the lid and has its upper end extended to cover the recess formed between the lugs F F, to strengthen -them and to keep out dust and dirt. The outside of the extension is flush with the lugs, so as to form a neat rounded appearance with them. The axis of this chamber nearly coincides with one of the radii of a circle drawn with its center at Othe central point of the cylindrical offset.

In the chamber H is inclosed the spiral spring L, on which is seated the plungerM of peculiar construction. The main partof the plunger is cylindrical in form. Its upper end is cut away in such a manner as to form the concave surface N, near the lower edge of which is formed the convex projection O, which will coincide with the recess D in the ofiset B. From midway of the plunger extends the knob or lug P through a suitable slot formed in the lid.

S isa handle projecting from the lower edge of the lid, so that it can be easily raised.

To hinge the lid in position on the box, the plunger M, by means of the knob P, is pressed in the chamber H against the force of the spring L and the lugs F F, hooked on the j ournals O O of the offset. Then this has been done, the plunger is released and is forced by the spring against the ofiset, so that its concave face N will bear against the convex face of the offset. When the lid is raised, the friction caused by the plunger being forced against the ofiset is sufficient to cause the same to bind thereon and hold the lid at any height to which it might be raised.

On closing the lid the convex projection O of the plunger will enter the recess D, formed in the oifset, and, acting as a cam, will tend to force the lid down and keep it closed. The force with which the lid 'will be closed will be in proportion to the strength of the spring. To give a greater force to the cam action, the concave surface is slightly cut away at n and the recess D at m.

In the modifications shown the plunger is made hollow, so that the spring L may be partly inclosed thereby. By this means the chamber H may be much shortened and the construction of the lid simplified.

In the modifications shown in Figs. 9, 10, and 11 the journals 0 project inwardly from the lugs F F and register in suitable recesses F F, formed in the sides of the offset B for their reception. Grooves H H extend into these recesses to allow the passage of the j ournals, so that the lid may be hinged in place.

Having thus describedmy invention, what I claim, and desire to secure by Letters Patent, is

1. The combination of the box A, having the oifset B, the lid E, having lugs F F recessed on their inner sides to form bearings for the journals 0 O of the offset, the chamber H, formed in the said lid, and the spring-operated plunger carried within said chamber and bearing against the said offset B, substantially as and for the purpose specified.

2. The combination of the axle-box having the offset B recessed at D, the lid E, having the lugs F F recessed on their inner sides to form bearings for the journals 0 O of the offset, the chamber H, formed in said lid, the spring-actuated plunger carried within said chamber and having a concave face bearing against the offset, and a convex projection O to register with the recess D, substantially as and for the purpose set forth.

3. The combination of the axle-box having the offset B and the lid hinged to the ofiset by means of the recessed lugs F F, said lugs having openings T, substantially as and for the purpose specified.

In testimony whereof I affix my signature in presence of two witnesses.

Witnesses:

MARTIN L. BECKER,

JOHN C. MoYER. 

